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Litvin F.L. Development of Gear Technology and Theory of Gearing. На английском языке. О зубчатых передачах, технология и теория. First published in 1997 by National Aeronautics and Space Administration in Washington DC . Written in English, 120 pages. A NASA Reference Publication discusses gear technology from mathematical and historical perspectives. Following a preface containing historical and philosophical observations, the first of three chapters presents mathematical details of the theory of gearing, including recent developments attributable to the author and others. The second chapter discusses the development of gear geometry and technology, with emphasis on modifications of gear geometries to improve conditions of meshing. The third chapter presents biographies of inventors, scientists, and founders of gear companies in order to credit the contributions made by previous innovators and to combine the separate pieces of the history of gear technology and the theory of gearing. This work was done by Faydor L. Litvin of the University of Illinois at Chicago for Glenn Research Center. To obtain a copy of the publication, "Development of Gear Technology and Theory of Gearing, " access the Technical Support Package (TSP) free online at urw.nasatech.com under the achinery/Automation category. Inquiries concerning rights for the commercial use of this invention should be addressed to NASA Glenn Research Center, Commercial Technology Office, Attn: Steve Fedor, Mail Stop 4-8, 21000 Brookpark Road, Cleveland, Ohio 44135. Refer to LEW-16702.
E-Book Content
Development of Gear Technology and Theory of Gearing
by Faydor L. Litvin
U.S. ARMY
RESEARCH LABORATORY
National Aeronautics and Space Administration Lewis Research Center Cleveland, Ohio 44135
NASA Reference Publication 1406 U.S. ARMY
RESEARCH LABORATORY
Development of Gear Technology and Theory of Gearing Faydor L. Litvin University of Illinois at Chicago, Chicago, Illinois
National Aeronautics and Space Administration Lewis Research Center
ARL–TR–1500
Acknowledgments The author expresses his deep gratitude to the individuals and institutions for the historical information about the development of gear theory and technology and to those companies that have supported the research projects accomplished at the Gear Research Laboratory of the University of Illinois. From the United States: Allison Engine Company: Gene Pfaffenberger, Supervisor, and Matt Hawkins, Development Engineer; Army Research Laboratory (NASA Lewis Research Center): Dr. Robert Handschuh, Dr. David G. Lewicki, and Dr. Robert Bill; Paul Baxter, the son of Meriwether L. Baxter; Buckingham Associates Incorporated: Eliot K. Buckingham, President; Cone Drive Textron: Jerry B. Hagaman, Director of Engineering, and Duane Gilbert, Manager of Sales and Marketing; Dana Corporation, Spicer Axle Division: John Hickey, Director of Engineering, and Dr. Wei-Jiung Tsung, Gear Research Coordinator; Darle W. Dudley; Emerson Power Transmission Corporation: Larry Spiers, Vice President of Engineering, and Charles A. Libourel, Manager of Research and Development; Fellows Gear Shaper Company: Lawrence E. Greenip, Jr.,Vice President; Ford Motor Company: Ronald A. Andrade, Chief Engineer, and Thomas M. Sep, Senior Technical Specialist; The Gleason Foundation: John B. Kodweis, Vice President of Administration; The Gleason Works: Gary J. Kimmet, Vice President of Regional Operations; Dr. Hermann J. Stadtfeld, Vice President of Research and Development; and Theodore J. Krenzer, Director of Research and Development (retired); Margot Jerrad, the daughter of Dr. Hillel Poritsky; Mary Bell Kluge, the granddaughter of Samuel I. Cone; McDonnell Douglas Helicopter Systems: Robert J. King, Project Manager; Terrell W. Hansen, Department